Analog Electronics
Class B amplifier is biased

 just at cut-off.
 nearly twice cut-off.
None of these
 at midpoint of load line.

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Analog Electronics
For transistor action

  Je must be forward biased and Jc should be reverse biased.
  all of these.
  the base region must be very thin and lightly doped.
  the emitter should be heavily doped.

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Analog Electronics
A working diode must have

 High resistance when forward biased, while low resistance when reverse bias
 Low resistance when forward or reverse biased
 Low resistance when forward biased, while high resistance when reverse bias
 High resistance when forward or reverse biased

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Analog Electronics
Why is silicon preferred than germanium ?

 Current sensitivity of silicon with temperature is less
 All the above
 Leakage current due to minority charge carrier is less in silicon
 Silicon has higher tolerance to temperature

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